1. Start with architecture
Ask whether the app is local-first by default or cloud-first with optional local storage. Local-first architecture reduces risk and simplifies trust decisions.
2. Evaluate retrieval speed
A bookmark tool is only useful if search and filtering return results quickly under realistic data volume.
3. Check duplicate cleanup quality
Heavy users accumulate repeated URLs. Duplicate detection and cleanup should be first-class, not hidden.
4. Demand export portability
Portability protects your long-term workflow. At minimum, verify robust export options and practical migration paths.
5. Confirm privacy communication
Strong apps clearly explain permissions, data handling, and where information is stored.